steveplym Posted April 15, 2008 Report Posted April 15, 2008 Took the P-15 out again today for a cruise and there seems to be more speedometer noise. I had a noise when I first started driving the car after the engine swap. Cable broke and I replaced it. Noise went away for a while, but now it's back. Needle on speedometer bounces around a bit too while it's making noise. Could it be something simple or would it be the speedo gear on the side of the trans? Where would I find one to replace it with if it is? Quote
p24-1953 Posted April 15, 2008 Report Posted April 15, 2008 Same thing hapened to me, when i replaced the cable it started again. After disassembling the speedometer i found that the oil had gummed up the shaft in the speedometer. soaked it, cleaned it, lubed it and put it back in and it works like a charm. Quote
steveplym Posted April 15, 2008 Author Report Posted April 15, 2008 Same thing hapened to me, when i replaced the cable it started again. After disassembling the speedometer i found that the oil had gummed up the shaft in the speedometer. soaked it, cleaned it, lubed it and put it back in and it works like a charm. How easy is it to take the speedometer apart? I plan on taking the dash out later this summer and repaint it. Probably be the best time to do that. Quote
RobertKB Posted April 15, 2008 Report Posted April 15, 2008 Doubt if it's the speedo gear on the side of the tranny as you said it worked fine for a while. Did you lube the new speedo cable? Did you oil the speedo as there is a location for this. Could be the speedometer is dry. I would check and lube the new cable if you have not already done that. Then if the noise persists lube the speedometer itself (there is a lube point on the outside) , and then if there is still the noise take the speedo out and with a very thin oil like sewing machine oil lube the moving parts. Hope things work out! Quote
p24-1953 Posted April 15, 2008 Report Posted April 15, 2008 it was easy on the 53'. Remove four screws and the unit came out. There are 2 tabs holding the face plate on and 2 screws holding the unit together. it was easy to do. Quote
steveplym Posted April 15, 2008 Author Report Posted April 15, 2008 Doubt if it's the speedo gear on the side of the tranny as you said it worked fine for a while. Did you lube the new speedo cable? Did you oil the speedo as there is a location for this. Could be the speedometer is dry. I would check and lube the new cable if you have not already done that. Then if the noise persists lube the speedometer itself (there is a lube point on the outside) , and then if there is still the noise take the speedo out and with a very thin oil like sewing machine oil lube the moving parts. Hope things work out! I lubed the new cable before I put it on. Where is the lube point on the speedometer? I could try lubing that. Quote
p24-1953 Posted April 16, 2008 Report Posted April 16, 2008 bottom right. it is a 1/2" long tube that screws out with a cotton wick in it Quote
central52 Posted February 1, 2009 Report Posted February 1, 2009 In my Plymouth Service Manual it says that in cold weather the transmission lubricant may be pumped into the speedo housing causing noise. This is bacause the seal on the spedometer pinion may be worn out. I get this noise when it's really cold outside. And it goes away when the car warms up and is driven a while. Anyone know where I can get this pinion seal? It's a hard part to find anywhere. Thanks, Ed P. Quote
Don Coatney Posted February 1, 2009 Report Posted February 1, 2009 Speedometers are not difficult to disassemble. I used a drill motor to test my speedometer on the bench. I also bought a new cable and housing from the folks listed on the card below. Also pictured is the wick on the back of the speedometer. Quote
John Mulders Posted February 1, 2009 Report Posted February 1, 2009 disassembling never has been the issue Don John Quote
Don Coatney Posted February 1, 2009 Report Posted February 1, 2009 disassembling never has been the issue Don John Did I say assembly was easy???? Quote
55 Fargo Posted February 1, 2009 Report Posted February 1, 2009 Steve, try the least intrusive 1st, the cable is lubed, pull the wick out of the speedo, get some lube in there, try that out. If all fails pull speedo, clean and lube..........Fred Quote
55 Fargo Posted February 1, 2009 Report Posted February 1, 2009 The needle bouncing is usually indicative of the speedo itself, mine would bounce and be a little noiosy, try lubing the point of entry of the cable to speed,pull the wick and lube, let sit over night and try again....... Quote
Normspeed Posted February 1, 2009 Report Posted February 1, 2009 When you replaced the cable, did that include the outer shell or just the inner cable? Sometimes the outer case gets a rough spot that will snag the inner cable and eventually break it. Quote
steveplym Posted February 2, 2009 Author Report Posted February 2, 2009 I purchased both the entire cable assembly from Roberts. It was a little bit longer than the original, but it does work. I had problems with noise last summer and when I took the dash out I lubricated the speedometer with pneumatic tool oil. I drove the car and the noise was gone, it hasn't come back yet. I think the old cable was getting very old and had not been lubed in a while. That pretty much sealed its doom. Quote
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